Variable	Control	Ballot Secrecy	Personalized URL
Race/Ethnicity: Black	.5322	.5406	.5325
	[.4992]	[.4984]	[.499]
Race/Ethnicity: Hispanic	.0591	.0591	.0581
	[.236]	[.2358]	[.234]
Race/Ethnicity: Other	.0461	.0477	.0495
	[.2098]	[.2131]	[.2169]
Gender: Female	.6139	.6245	.6276
	[.4871]	[.4843]	[.4835]
Marital Status: Married	.053	.0617	.0588
	[.2242]	[.2406]	[.2352]
Marital Status: Unknown	.0087	.0061	.0073
	[.0929]	[.0776]	[.0854]
Age	28.582	29.0009	28.8995
	[9.6203]	[9.8213]	[9.9344]
Age squared (divided by 100)	9.094	9.375	9.3385
	[6.6417]	[6.7539]	[6.9136]
FLAG: Missing age	.0104	.0066	.0078
	[.1017]	[.0811]	[.0879]
Observations	1150	6940	4629
Standard deviations in brackets			
F-test p-value: 0.908			
